Reporting and analysis on how to move the world toward a sustainable model.

The recent three-day meeting was more easily known as Rio+20, but so few specifics, so few targets, so few tangible decisions came out of the gathering that some participants were derisively calling it “Rio Minus 20,” or “Rio Plus 20 Minus 40.”

“A failure of epic proportions” was the verdict from Kumi Naidoo, executive director of Greenpeace International.